A square coil, enclosing an area with sides 2.75 cm long, is wrapped with 1 875 turns of wire. A uniform magnetic field perpendicular to its plane is turned on and increases to 0.390 T during an interval of 1.70 s. What average voltage is induced in the coil?
a. 0.325 V
b. 0.553 V
c. 1.73 V
d. 0.118 V
e. 1.82 V
a
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The figure shows the speedometer readings as a car comes to a stop. Solve graphically for the acceleration at t = 7.0 s.
A. 2.5 
B. - 2.5
C. - 2.0
D. 2.0
If you take two steps of different sizes, (a) can you end up at your starting point? More generally, (b) can two vectors with different magnitudes ever add to zero? (c) Can three or more?
A. (a) Yes, (b) No, (c) Yes B. (a) No, (b) No, (c) Yes C. (a) No, (b) Yes, (c) Yes
Which experiment best illustrates the particle-like nature of light?
A) photoelectric effect B) double-slit experiment C) both of these D) neither of these
Three essential components of a nuclear reactor are: a fissionable fuel , control rods, and
A) a "scrubber" to prevent radioactive isotopes from getting into the environment. B) lead to stop the neutrons. C) tritium to speed up the neutrons. D) a coolant to transfer the heat from the reactor to the turbine. E) a radioactive substance to keep the reaction going.